Bander L K, Morgan K J, Zabik M E
Am J Public Health. 1983 Jul;73(7):789-94. doi: 10.2105/ajph.73.7.789.
A nationwide, seven-day food consumption survey of 371 preschool children between the ages of birth and five years indicated that a direct linear relationship existed between age and increased dietary lead intake from foods consumed. Daily dietary lead intake averaged 62 micrograms and ranged from 15 micrograms to 234 micrograms. The various levels of lead intake were attributed to frequency of consumption of food items, quantity of food consumed, and the lead content of particular food items. To account for variation in the quantity of food consumed by the various children, average lead intake per 500 kilocalories consumed and per 500 g of food consumed was calculated. When these standardization procedures were followed, an equalization in the average daily dietary lead intake values was observed among the various aged children.
一项针对371名年龄在出生至5岁之间的学龄前儿童开展的为期七天的全国性食物消费调查表明，年龄与所食用食物中膳食铅摄入量增加之间存在直接线性关系。每日膳食铅摄入量平均为62微克，范围在15微克至234微克之间。不同水平的铅摄入量归因于食物的消费频率、食物消费量以及特定食物的铅含量。为了考虑不同儿童食物消费量的差异，计算了每摄入500千卡热量和每食用500克食物的平均铅摄入量。当遵循这些标准化程序时，各年龄段儿童的平均每日膳食铅摄入量值趋于均衡。
